AIDS Education and Prevention, 29(3), 241–255, 2017 © 2017 The Guilford Press 241 Steven Belenko, PhD, and Leah Hamilton, MA, are affiliated with Temple University, Philadelphia, Penn- sylvania. Christy Visher, PhD, Holly Swan, PhD, and Daniel O’Connell, PhD, are affiliated with the Uni- versity of Delaware. Holly Swan is also affiliated with Abt Associates, Inc., Cambridge, Massachusetts. Frank Pearson, PhD, is affiliated with the National Development and Research Institutes, New York, New York. Michele Pich, MA, MS, is affiliated with Rowan University, Glassboro, New Jersey, and the University of Pennsylvania. Richard Dembo, PhD, is affiliated with the University of South Florida. Linda Frisman, PhD, is affiliated with the University of Connecticut. Jennifer Willett, PhD, is affiliated with the University of Nevada, Reno. This study was funded under a cooperative agreement from the U.S. Department of Health and Human Services, National Institutes of Health, National Institute on Drug Abuse (NIDA). The authors gratefully acknowledge the collaborative contributions by NIDA; the Coordinating Center, AMAR International, Inc.; and the Research Centers participating in CJ-DATS. The Research Centers include: Arizona State University and Maricopa County Adult Probation (U01DA025307); University of Connecticut and the Connecticut Department of Correction (U01DA016194); University of Delaware and the New Jersey Department of Corrections (U01DA016230); Friends Research Institute (U01DA025233) and the Mary- land Department of Public Safety Correctional Services’ Division of Parole and Probation; University of Kentucky and the Kentucky Department of Corrections (U01DA016205); National Development and Research Institutes, Inc., and the Colorado Department of Corrections (U01DA016200); University of Rhode Island, Rhode Island Hospital, and the Rhode Island Department of Corrections (U01DA016191); Texas Christian University and the Illinois Department of Corrections (U01DA016190); Temple Univer- sity and the Pennsylvania Department of Corrections (U01DA025284); and the University of California at Los Angeles and the Washington State Department of Corrections (U01DA016211). The contents are solely the responsibility of the authors and do not necessarily represent the views of the Department of Health and Human Services, NIDA, or other CJ-DATS parties. Address correspondence to Steven Belenko, Department of Criminal Justice, Temple University, 1115 Polett Walk, Philadelphia, PA 19122. E-mail: sbelenko@temple.edu BELENKO ET AL. EFFICACY OF STRUCTURED ORGANIZATIONAL CHANGE INTERVENTION EFFICACY OF STRUCTURED ORGANIZATIONAL CHANGE INTERVENTION ON HIV TESTING IN CORRECTIONAL FACILITIES Steven Belenko, Christy Visher, Frank Pearson, Holly Swan, Michele Pich, Daniel O’Connell, Richard Dembo, Linda Frisman, Leah Hamilton, and Jennifer Willett This article presents findings from a multisite cluster randomized trial of a structured organizational change intervention for improving HIV testing services in jails and prisons. Matched pairs of prison and jail facilities were randomized to experimental and control conditions; all facilities received baseline training about best practices in HIV testing and other HIV ser- vices and selected an area of HIV services on which to focus improvement efforts. The experimental facilities formed local change teams and were provided external coaching based on the Network for the Improvement of Addiction Treatment (NIATx) process improvement model. Difference-in- difference analyses indicate a significant relative increase in HIV testing in the experimental compared to the control condition. Meta-analyses across